NOW Sports Micronized Creatine Monohydrate Review

Both list plain creatine monohydrate, and neither the label nor the listing for either says Creapure (checked Oct 6, 2026), so the source of each is not stated. Where the two brands differ is on serving and packaging size (NOW's label serving is 4.2 g in a 500 g tub, ON's is 5 g in a 600 g tub) and brand-level QC: NOW runs in-house QC, while ON's label prints Banned Substance Tested. For 95% of buyers there's no functional difference between the two; for the remaining 5%, the brand-loyalty preference (kosher cert, US health-store availability, founder-owned brand) is the tiebreaker.

One real difference: NOW's 30+ year operating history with in-house testing labs — they've recalled and reformulated their own products when QC flagged issues, which signals real testing discipline. The label carries Vegan, Kosher, Non-GMO and GMP Quality Assured marks, but we could not confirm a sport certification for this product (checked Oct 6, 2026). A generic micronized monohydrate like Bulk Supplements is the same molecule by molecular formula.

Slightly, yes. NOW's label serving is 4.2 g per scoop — 119 servings per tub, about $0.18 each, or $0.04 per gram of creatine (about $21 for 500 g, typical Amazon price, checked Oct 6, 2026). That is $0.21 per 5 g against ON's $0.23. The gap is small, and ON's tub is larger (600 g vs 500 g). Both are household-brand mid-tier picks, so pick on availability and trust signal, not price within this tier.

Not for performance — but it's a useful proxy signal for QC discipline. Kosher certification requires a rabbinical inspector to audit the facility, the supply chain, and the cleaning protocols between production runs. It's not a substitute for NSF Certified for Sport (banned-substance testing), but it does indicate the facility has external auditing baked into operations. For drug-tested athletes, Thorne with NSF Certified for Sport remains the cleaner pick; for everyone else, kosher certification is a 'free' QC signal layered on top of GMP.

Powder, every time. The capsule form forces you to swallow 6-8 capsules per 5 g serving — a worse user experience and a 15-25% price premium for the encapsulation overhead. NOW's micronized powder mixes cleanly in water (the 'micronized' particle size is the whole point), has no off-flavor, and the 119-serving tub at the label's 4.2 g/scoop is a solid 4 months of compliance-friendly dosing. The only honest reason to pick capsules is travel convenience — for daily home use, the powder wins on every axis.

Two places. First, the tub is 500 g vs ON's 600 g, so it lasts a month less at the same daily dose. Second, NOW is not on the NSF Certified for Sport list and its label carries no Informed Sport seal (checked Oct 6, 2026), so federation-tested athletes should pick Thorne (#2) for banned-substance certification. For recreational lifters, neither gap is disqualifying. On price, NOW is now a little cheaper than ON ($0.21 vs $0.23 per 5 g).

1. [1] Kreider 2017 PMID 28615996 — International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. ISSN position statement covering 500+ studies — monohydrate is the most effective form, with no evidence that alternative forms outperform it at equivalent doses. 3-5 g/day chronic dosing is safe and effective for healthy adults.
2. [2] Buford 2007 PMID 17908288 — International Society of Sports Nutrition position stand: creatine supplementation and exercise. Earlier ISSN position statement establishing the 3-5 g/day maintenance protocol as effective and safe. The foundation document underlying the modern creatine protocol.
3. [3] Cooper 2012 PMID 22817979 — Creatine supplementation with specific view to exercise/sports performance: an update. Safety + efficacy review covering 30+ controlled trials. Established that chronic creatine at 3-5 g/day has no adverse effects on kidney function, liver enzymes, or muscle integrity in healthy adults.
4. [4] Volek 1997 PMID 9216554 — Creatine supplementation enhances muscular performance during high-intensity resistance exercise. Foundational RCT showing creatine monohydrate at 5 g/day improves bench press 1RM and total work during high-intensity resistance exercise — the source trial for the strength-effect claim.
5. [5] Rae 2003 PMID 14561278 — Oral creatine monohydrate supplementation improves brain performance: a double-blind, placebo-controlled, cross-controlled trial. Creatine monohydrate at 5 g/day improved working memory and intelligence test performance in vegetarians — establishing the secondary cognition effect beyond the strength application.